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PL84

Sensibly equivalent to:
15CW5 30P18 N379
See also:
Valves and their Habits
    
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The PL84 audio output pentode was designed for use in television receivers.
110° deflection picture tubes required considerable power to the deflection coils and the PL84 was designed for frame output service as well as audio.
The PL84 is based on the EL84 audio output valve but designed for lower HT voltages.
The carbonised anode is formed from two thin strips of nickel stitched together. The PL84 is a true pentode with a wire suppressor grid.
The thin glass tube envelope is 20 mm in diameter and, excluding the B9A base pins, is 70 mm tall.
References: Datasheet & 1040. Type PL84 was first introduced in 1956.

 

Pin Connections
B9A
1
2
3
4
5
6
7
8
9
ic
g1
k,g3
h
h
ic
a
ic
g2

 

Absolute Maximum Operating Conditions
Pentode
Vh
Ah
Va
Vs
Vg
mAa
mAs
ra
gm
Pout
D
15
0.3
170
170
-12.5
70
5.0
20,000
6.4
3.5W
10%
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated April 24, 2014.
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